公开(公告)号：US11996026B1

公开(公告)日：2024-05-28

申请号：US18215736

申请日：2023-06-28

Applicant: Samsung Display Co., LTD.

Inventor： Kyungho Kim ,  Gichang Lee

IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/36

CPC classification number: G09G3/20 ,  G09G3/3266 ,  G09G3/3677 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/04 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A scan driver includes a plurality of stages. Each of the plurality of stages includes a control circuit which controls a voltage of a first node and a voltage of a second node in response to an input signal, a first clock signal and a second clock signal, a carry output circuit which outputs a carry signal in response to the voltage of the first node and the voltage of the second node, an enable node controlling circuit which controls a voltage of an enable node in response to the carry signal, an enable signal and an inverted enable signal, a masking circuit which controls a voltage of a third node in response to the voltage of the second node and the voltage of the enable node, and a scan output circuit which outputs a scan signal in response to the voltage of the first node and the voltage of the third node.

公开(公告)号：US20230368736A1

公开(公告)日：2023-11-16

申请号：US18311398

申请日：2023-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： Sangyong No ,  Gichang Lee

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2310/0262 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2310/0205 ,  G09G2310/0202 ,  G09G2320/0257 ,  G09G2330/021

Abstract: A pixel including a control transistor electrically connected between a gate of a switching transistor or another switching transistor and a node, and that controls a bias state of a driving transistor according to a voltage of a first gate signal for controlling turn-on of the switching transistor and a voltage of a second gate signal for controlling turn-on of the other switching transistor.

公开(公告)号：US11086177B2

公开(公告)日：2021-08-10

申请号：US16356548

申请日：2019-03-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gichang Lee ,  Insoo Wang

IPC: G02F1/1362 ,  G02F1/1343

Abstract: A display apparatus includes a gate line, a data line, and a pixel. The pixel includes first and second pixels displaying grayscales different from each other in response to a data voltage provided through the data line. The first pixel includes a first transistor including a gate electrode connected to the gate line and a first terminal connected to the data line and a first liquid crystal capacitor connected to a second terminal of the first transistor. The second pixel includes a second transistor including a gate electrode connected to the gate line and a first terminal connected to the second terminal of the first transistor and a second liquid crystal capacitor connected to a second terminal of the second transistor.

公开(公告)号：US20240321215A1

公开(公告)日：2024-09-26

申请号：US18436904

申请日：2024-02-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyungho Kim ,  Sangyong No ,  Gichang Lee

IPC: G09G3/3266 ,  G09G3/3233 ,  H03K17/687

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  H03K17/6871 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2310/08

Abstract: A stage of a gate driving circuit includes a first control circuit connected to a first voltage input terminal receiving a first voltage and a second voltage input terminal receiving a second voltage lower than the first voltage, the first control circuit being configured to control voltage levels of a first control node and a second control node; a first output circuit connected to a first clock terminal and a third voltage input terminal receiving a third voltage, the first output circuit being configured to output a gate signal according to the voltage levels of the first control node and the second control node; and a second output circuit connected to a second clock terminal and the second voltage input terminal, the second output circuit being configured to output a carry signal according to the voltage levels of the first control node and the second control node.

公开(公告)号：US11996049B2

公开(公告)日：2024-05-28

申请号：US18311398

申请日：2023-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： Sangyong No ,  Gichang Lee

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0202 ,  G09G2310/0205 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2330/021

Abstract: A pixel including a control transistor electrically connected between a gate of a switching transistor or another switching transistor and a node, and that controls a bias state of a driving transistor according to a voltage of a first gate signal for controlling turn-on of the switching transistor and a voltage of a second gate signal for controlling turn-on of the other switching transistor.

公开(公告)号：US11069302B2

公开(公告)日：2021-07-20

申请号：US16726500

申请日：2019-12-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gichang Lee

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display apparatus includes a substrate including a display area and a peripheral area at least partially surrounding the display area. A corner of an edge of the display area is curved. The peripheral area includes a pad area. A data line is disposed in the display area. A first connecting line is disposed in the display area and is connected to the data line to transmit a signal from the pad area to the data line. The first connecting line includes a first portion extending tram the edge in a direction away from the peripheral area and a second portion bent with respect to the first portion and extending towards the corner.

公开(公告)号：US10656491B2

公开(公告)日：2020-05-19

申请号：US15642102

申请日：2017-07-05

Applicant: Samsung Display Co., Ltd.

Inventor： Gichang Lee ,  Yongjo Kim ,  Cholho Kim ,  Gunwoo Yang ,  Jihoon Yang ,  Yongwoo Lee

IPC: G02F1/1368 ,  G02F1/1362 ,  H01L29/417 ,  H01L27/12 ,  H01L29/786 ,  G02F1/136

Abstract: A liquid-crystal display including: a gate line extending in a first direction; a gate electrode protruding from the gate line; a gate insulating layer arranged on the gate electrode; an active layer arranged on the gate insulating layer while being insulated from the gate electrode; a data line arranged on the active layer and extending in a second direction; a source electrode protruding from the data line, having a portion overlapping the gate electrode on a plane, and including a plurality of source electrode branches that are separate from each other; a drain electrode being separate from the source electrode, and including a plurality of drain electrode branches, each being arranged between two of the plurality of source electrode branches, and a drain electrode connecting part connecting the plurality of drain electrode branches; a pixel electrode defining a pixel region; a liquid-crystal layer arranged on the pixel electrode.

公开(公告)号：US09837021B2

公开(公告)日：2017-12-05

申请号：US14738622

申请日：2015-06-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeongho Lee ,  Dohyun Kwon ,  Su-Yeon Sim ,  Ju-Won Yoon ,  Gichang Lee ,  Seungmin Lee ,  Iljeong Lee ,  Choongyoul Im

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262

Abstract: An organic light emitting display device includes an (i−1)th pixel, an i-th pixel, and an (i+1)th pixel, each including an organic light emitting diode and a driving transistor to control a driving current flowing through the organic light emitting diode. A first node of the i-th pixel, to which a control electrode of the driving transistor of the i-th pixel is connected, is initialized to an initialization voltage in synchronization with an (i−1)th scan signal applied to the i-th pixel, and an anode of the organic light emitting diode of the i-th pixel is initialized to the initialization voltage in synchronization with an i-th scan signal applied to the (i+1)th pixel.